Corner clamp construction for wall forms



F. G. PAULI, JR

CORNER CLAMP CONSTRUCTION FOR WALL FORMS May 28, 1968 2 Sheets-Sheet 1Filed May 27, 1966 INVENTOR.

FRANK G. PAuu JR.

,; @461 wA/M ATTORNEYS l- .lll'llllll.

May 28, 1968 F. cs. PAUL], JR

CORNER CLAMP CONSTRUCTION FOR WALL FORMS 2 Sheets-Sheet 2 Filed May 27,1966 FRANK G. B Xfi EfiUR.

Law @144! ia-a ATTORNEYS 3,385,556 CORNER CLAMP CONSTRUCTION FOR WALLFORMS Frank G. Pauli, Jr., Northville, Mich, assignor to Kwik Lock FormCo., Northville, Mich., a corporation of Michigan Filed May 27, 1966,Ser. No. 553,524 7 Claims. (Cl. 249-194) This invention relates to wallforms of the type conventionally used for pouring concrete walls and,more particularly, to a clamp arrangement for securing such Wall formstogether where they meet to form an outside corner for the wall to bepoured.

Wall panels of the type described are usually constructed of uniformheight and a plurality of lengths and widths; however, it frequentlyhappens that the Wall to be poured has a length which does not coincideexactly with the length of a plurality of such panels arranged end toend. As a consequence, the two end panels defining the two faces of theouter corner of the wall must be perpendicularly arranged with one panelextending outwardly beyond the intersection of the two panels. Thispresents I the problem of securing the panels together so that they canbe easily connected in rigidly fixed relation and at the same timeeasily dismantled.

Accordingly, it is an object of this invention to provide a corner clamparrangement which enables two perpendicularly related wall formingpanels to be easily connected in fixed relation when the panels arearranged such that one panel extends outwardly beyond the other panel.

Other features and objects of the invention will become apparent fromthe following description taken in conjunction with the accompanyingdrawings in which:

FIGURE 1 is a fragmentary top view partly in section of a pair of wallforming panels secured together with the clamp of the present invention.

FIGURE 2 is a sectional view taken along the 22 in FIG. 1.

FIGURE 3 is a fragmentary perspective view of the wall forming panelsand clamp arrangement shown in FIG. 1.

FIGURE 4 is a sectional view taken along the line 44 in FIG. 1.

FIGURE 5 is an end view of the clamp.

Referring to the drawings, two wall panels and 12 are illustratedarranged in perpendicular relation to one another in an upright positionso that the intersection thereof, generally indicated by numeral 14, isadapted to form the outside corner of two intersecting walls of abuilding structure. Panels 10 and 12 are similarly constructed andgenerally consist of wood 2 x 4s 16 which define rectangular framesfaced on the inner side thereof with plywood panels 18. The completedwall form would also include similar panels spaced inwardly from panels10 and 12 so that the wall is formed by pouring concrete between theinner and outer wall panels.

Panels 10 and 12 additionally incorporate horizontally extending walers19 which are in the form of a pair of structural angles 20 secured tothe vertically extending frame members 16 in spaced apart relation andalso interconnected by steel pins 22. Pins 22 are preferably spacedhorizontally along the walers 19 and there is preferably provided awaler pin 22 adjacent each end of the walers. Each panel is preferablyprovided with at least two horizontally extending and vertically spacedwalers 19. In the arrangement illustrated, the end panel 12 abutsagainst the plywood facing 18 of panel 10 intermediate the ends of thepanel. As a consequence, panel 10 extends outwardly beyond theintersection of panels 10 and 12.

The clamp of the present invention is designated genline United StatesPatent 0 "ice erally by numeral 24 and includes a pair of structuralangles 26, 28 which are secured together in spaced relation with onepair of flanges 30 thereof extending parallel to one another andvertically spaced apart. At one end angles 26, 28 are secured togetherby welding to an end plate 32 provided with a foot 34 secured theretoand reinforced by a gusset plate 36. End plate 32 preferably spans thehorizontally extending flanges 50 of angles 26, 28 and extends from thevertically disposed flanges 38 of these angles to beyond the free edgesof flanges 30 as shown in FIG. 1. Foot 34 is in the form of a small flatplate which is welded to the inner edge of end plate 32.

The opposite ends of angles 26, 28 are likewise secured together inspaced relation by a second end plate 49 which is reinfroced by a pairof gusset plates 42. End plate 40 is disposed in a plane perpendicularto angles 26, 28 and is substantially larger than end plate 32. As shownin FIG. 5, end plate 40 extends beyond the free edges of horizontalflanges 30 and also extends in the opposite direction substantiallybeyond the plane of the vertical flanges 38 of angles 26, 28. A hook 44is secured to the end plate 40 and extends in a horizontal planeperpendicular to the vertical plane of plate 40 and centrally of thespaced horizontal flanges 30 of angles 26, 28. Hook 44 is fashioned witha nose 46 having a clamping edge 48 which is inclined toward the planeof plate 40 in a direction away from the end 50 of nose 46.

As is indicated in FIG. 1, clamp 24 is adapted to be arranged within theoutside corner of the intersection of panels 10 and 12 with the foot 34bearing against the panel facing 18 of panel 10 and with the end plate40 bearing against the outer faces of the vertical flanges 38 of angles26, 28. In this position of clamp 24, the inclined edge 48 of nose 46 isadapted to engage the waler pin 22 adjacent the end of panel 12, hook 44extending between the horizontal flanges 30 of the waler 19 as shown inFIG. 4.

A rod 52 is arranged between the horizontal flanges 30 of angles 26, 28.Rod 52 is trapped between flanges 30 by spaced plates 54, 56 whichconstrain rod 52 to horizontal sliding movement lengthwise of angles 26,28. As is shown in FIG. 1, the inner panel facing 18 of panel 12 isprovided with a plurality of spaced openings 58 which are alignedhorizontally between the horizontally extending flanges of waler angles20. Rod 52 is adapted to extend through one of the openings 58 with itsfree end projecting between the waler angles 20. At its free end rod 52is provided with a transverse slot 60 into which a wedge 62 is adaptedto be driven downwardly. When wedge 62 is driven downwardly through slot60 it engages the outer end of slot 60 at one edge and the outer facesof the vertical flanges on the waler 19 at its opposite edge to drawclamp 24 tightly against the plywood facing 18 of panel 10.

As is illustrated in FIG. 1, the horizontal flanges 30 of angles 26, 28are formed with two pair of vertically aligned slots 64, 66. Slots 64,66 extend lengthwise of angles 26, 28 and are axially olfset asillustrated so that their adjacent ends are in overlapping transverselyspaced relation. A wedge plate 68, which is loosely connected to theclamp by means of a chain 70, is adapted to be driven downwardly througheither slots 64 or slots 66 (depending on the location of rod 52) toprevent panel 12 from shifting outwardly toward the extending end 72 ofpanel 10 when the wall formed by these panels is poured. Morespecifically, as shown in FIG. 1 the location of opening 58, throughwhich rod 52 extends, is such that rod 52 traverses the verticallyaligned slots 66 in the horizontal flanges 30 of angles 26, 28. Wedgeplate 68 is driven downwardly in that portion of slots 66 which extendsfrom rod 52 toward end plate 40. Wedge plate 68 thus prevents clamp 24,and thus panel 12 from shifting relative to panel 10 in a directiontoward the end 72 of panel 10. This is the direction in which panel 12would tend to shift when the concrete from which the wall is formed ispoured against the plywood facings 18 of panels 10 and 12. Movement ofpanel 10 away from panel 12 is prevented by the interengagement of wedge62 in the slot 60 of rod 52.

The two sets of slots 64, 66 are provided in staggered relation as shownso that, regardless of where the closest opening 58 in panel 10 islocated, the clamp is adapted to be secured in place. In the arrangementshown, the spacing between openings 58 is less than the distance betweenthe opposite outer ends of slots 64, 66.

In securing end panels 10 and 12 as shown in FIG. 1, the two panels arefirst arranged in perpendicular abutting relation as shown in FIG. 1with the end of panel 12 abutting the plywood facing 18 on the innerside of panel 10. Clamp 24 is then mounted on the two panels byinserting rod 52 through that opening 58 in panel 10 which underliesangles 26, 28. As rod 52 is pushed through opening 58, hook 44 isengaged with waler pin 22 so that eventually the clamp will assume theposition illustrated in FIG. 1 wherein hook 44 is securely engaged withwaler pin 22 and foot 34 is seated against the inner face of the plywoodfacing 18 on the extending end portion of panel 10. Wedge 62 is thendriven downwardly through the slot 60 at the free end of rod 52 to drawthe clamp solidly against panel 10. It will be observed that along oneedge wedge 62 engages the vertical flanges of waler angles 20 on panel10. Wedge plate 68 is then driven downwardly through slots 64 or 66depending upon which of these pair of slots rod 52 traverses. In thearrangement illustrated in FIG. 1, rod 52 traverses slots 66 and wedgeplate 68 is, therefore, driven downwardly through slots 66 with onevertical edge of wedge plate engaging rod 52 and the other vertical edgethereof engaging the edge of slot 66 which is adjacent the end plate 40.When two or more clamps 24 are secured in this manner with thevertically arranged spacers on the two panels, the two panels 10 and 12are securely anchored together. The clamp thus effectively preventseither of the panels from shifting outwardly when concrete is pouredbetween the wall forms at the corner of the structure. It will beappreciated that after the concrete wall has set, the clamp can beeasily removed from the panels by withdrawing wedges 62, 68 andunhooking the clamp from waler pin 22.

I claim:

1. A wall form arrangement comprising a pair of upright wall formingpanels each having a planar inner surface and arranged in perpendicularabutting relation so that the inner surfaces thereof define the outsidecorner of the wall to be formed, one of said panels extendingsubstantially beyond the abutting portions thereof, said extendingportion of the one panel having an opening extending therethrough, theother panel having an anchor member thereon accessible from the outerface thereof, a clamp for securing said panels together in said relationcomprising means forming a base seated against the outer face of saidother panel and means engaging said anchor member for fixedly locatingthe clamp on the outer face of said other panel adjacent the abuttingportions of the panels, means forming an arm on said base extendingtherefrom in a direction generally parallel to the inner face of saidone panel and overlying said opening, a rod shiftably mounted on saidarm for movement lengthwise of the arm, said rod extending through saidopening, means interconnecting said rod with said one panel to preventmovement of said arm in a direction away from said one panel and meansinterconnecting said rod and said arm to prevent movement of said baseand other panel toward said rod, said arm comprises a member havingvertically spaced, parallel upper and lower plate portions, said rodbeing disposed between said plate portions, said plate portions havingslots extending vertically therethrough and said last-mentioned meanscomprising a wedge member extending vertically through said slotsbetween said rods and the ends of the slots adjacent said base.

2. The combination called for in claim 1 wherein the slots in saidplates comprise at least two slots in each plate extending lengthwise ofthe plates and offset from one another with their adjacent ends inoverlapping relation.

3. The combination called for in claim 1 wherein said anchor membercomprising a vertically extending pin and said anchor engaging meanscomprises a hook on said clamp.

4. The combination called for in claim 1 including means fixedly mountedon said arm and bearing against the inner face of the extending portionof said one panel.

5. The combination called for in claim 1 wherein said arm comprises apair of structural angle members connected together with one set offlanges extending vertically in vertically aligned relation and with theother set of flanges extending horizontally in vertically spacedparallel relation.

6. The combination called for in claim 5 wherein said base comprises aplate member fixedly interconnecting said angles at one end thereof andextending in a plane perpendicular to the planes of both sets offlanges.

7. A clamp for connecting together in fixed relation a pair of wallforming panels which are arranged in abutting relation to form anoutside corner for the wall and wherein one of said panels extendssubstantially beyond the abutting portions thereof, said clamp beingadapted to be located in the outside corner of said abutting panels andcomprising means forming a base adapted to be positioned against theouter face of one of the panels, means on said base forming an armextending in a direction perpendicular to said base, said arm having aslotted portion extending lengthwise thereof, a rod in said slot andextending transversely of the slot, said rod being slidable in adirection lengthwise of the slot and being connected with said arm tolimit axial movement of the rod in at least one direction, said rodbeing adapted to extend through the extending portion of said one paneland having means thereon for anchoring said rod to said last-mentionedportion of the one panel, means on said base for fixedly connecting saidclamp with said other panel, said means on said base for securing theclamp to said other panel comprising a hook member shaped to engage apin on said other panel and means interconnecting said rod and said armto prevent movement of said base in a direction toward said rod.

References Cited UNITED STATES PATENTS 779,319 1/1905 Russell 249-491,603,016 10/1926 Bennetts. 2,008,162 7/1935 Waddell 249-48 X 2,582,1681/1952 Sato 249-49 2,595,286 5/1952 Otte et al 249-49 2,896,300 7/ 1959Arrighini et al. 249-194 FOREIGN PATENTS 879,371 11/ 1942 France.

J. HOWARD FLINT, JR., Primary Examiner.

7. A CLAMP FOR CONNECTING TOGETHER IN FIXED RELATION A PAIR OF WALLFORMING PANELS WHICH ARE ARRANGED IN ABUTTING RELATION TO FORM ANOUTSIDE CORNER FOR THE WALL AND WHEREIN ONE OF SAID PANELS EXTENDSSUBSTANTIALLY BEYOND THE ABUTTING PORTIONS THEREOF, SAID CLAMP BEINGADAPTED TO BE LOCATED IN THE OUTSIDE CORNER OF SAID ABUTTING PANELS ANDCOMPRISING MEANS FORMING A BASE ADAPTED TO BE POSITIONED AGAINST THEOUTER FACE OF ONE OF THE PANELS, MEANS ON SAID BASE FORMING AN ARMEXTENDING IN A DIRECTION PERPENDICULAR TO SAID BASE, SAID ARM HAVING ASLOTTED PORTION EXTENDING LENGTHWISE THEREOF, A ROD IN SAID SLOT ANDEXTENDING TRANSVERSELY OF THE SLOT, SAID ROD BEING SLIDABLE IN ADIRECTION LENGTHWISE OF THE SLOT AND BEING CONNECTED WITH SAID ARM TOLIMIT AXIAL MOVEMENT OF THE ROD IN AT LEAST ONE DIRECTION, SAID RODBEING ADAPTED TO EXTEND THROUGH THE EXTENDING PORTION OF SAID ONE PANELAND HAVING MEANS THEREON FOR ANCHORING SAID ROD TO SAID LAST-MENTIONEDPORTION OF THE ONE PANEL, MEANS ON SAID BASE FOR FIXEDLY CONNECTING SAIDCLAMP WITH SAID OTHER PANEL, SAID MEANS ON SAID BASE FOR SECURING THECLAMP TO SAID OTHER PANEL COMPRISING A HOOK MEMBER SHAPED TO ENGAGE APIN ON SAID OTHER PANEL AND MEANS INTERCONNECTING SAID ROD AND SAID ARMTO PREVENT MOVEMENT OF SAID BASE IN A DIRECTION TOWARD SAID ROD.